Configuring The Mstp Time-Related Parameters - H3C S5600 Series Operation Manual

Operation Manual – MSTP
H3C S5600 Series Ethernet Switches
Enter system view
Configure the network
diameter of the switched
network
The network diameter parameter indicates the size of a network. The bigger the
network diameter is, the larger the network size is.
After you configure the network diameter of a switched network, an MSTP-enabled
switch adjusts its hello time, forward delay, and max age settings accordingly to better
values.
The network diameter setting only applies to CIST; it is invalid for MSTIs.
II. Configuration example
# Configure the network diameter of the switched network to 6.
<Sysname> system-view
[Sysname] stp bridge-diameter 6

1.3.9 Configuring the MSTP Time-related Parameters

Three MSTP time-related parameters exist: forward delay, hello time, and max age.
You can configure the three parameters to control the process of spanning tree
calculation.
I. Configuration procedure
Follow these steps to configure MSTP time-related parameters:
Enter system view
Configure the forward
delay parameter
Configure the hello
time parameter
To do...
system-view
stp bridge-diameter
bridgenumber
To do... Use the command...
system-view
stp timer forward-delay
centiseconds
stp timer hello
centiseconds
Use the command...
1-28
Chapter 1 MSTP Configuration
Remarks
—
Required
The default network
diameter of a network is 7.
Remarks
—
Required
The forward delay parameter
defaults to 1,500
centiseconds (namely, 15
seconds).
Required
The hello time parameter
defaults to 200 centiseconds
(namely, 2 seconds).